Solids and Hydraulic Retention Time Effect on N2O Emission from Moving-Bed Membrane Bioreactors

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1 Citazioni (Scopus)

Abstract

Biological nutrient removal was operated at different solids (SRT) and hydraulic retention times (HRT) in order to assess their influence on nitrous oxide (N2O) emission from a hybrid moving-bed membrane bioreactor. The observed results show that the N2O production decreased when the SRT/HRT was decreased. The maximum N2O gaseous concentration was measured in the aerobic reactor at the end of phase I, and it decreased through phases II and III. From mass balances over the reactors of the system, the aerated (aerobic and membrane) reactors were the largest producers of N2O, showing that the greater part of N2O was produced during the nitrification process.
Lingua originaleEnglish
pagine (da-a)1294-1304
Numero di pagine11
RivistaCHEMICAL ENGINEERING & TECHNOLOGY
Volume41
Stato di pubblicazionePublished - 2018

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.1500.1500???
  • ???subjectarea.asjc.2200.2209???

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